Speaking about fair dice, I have a vague memory of reading somewhere that as dice get used, dirt builds up in the pips, causing them to be slightly off-balance.

Speaking about fair dice, I have a vague memory of reading somewhere that as dice get used, dirt builds up in the pips, causing them to be slightly off-balance. I cannot find anything about this online at all, so it might well be complete nonsense made up by whoever told me. I have, however, found that dice are not random, and that 1 is a more likely result than anything else: https://www.insidescience.org/news/dice-rolls-are-not-completely-random https://www.insidescience.org/news/dice-rolls-are-not-comple...